(All Except USA) For USA INC 60556 Canceled Replaced By GUARD, ABRASIVE WHEEL: INC 42536, FIIG A502L. An item usually made of metal which partially encompasses an abrasive wheel on various types of grinders and grinding machines. It may be designed as a spark arrestor and safety measure against broken wheel particles, also as a splash gurad when used with wet type gringing. It may be constructed from a single piece, or assembled from several pieces of metal. See also SHIELD, EYE, GRINDING WHEEL.